your colours are too seperated firstly. instead of shading the face you made it look like he has lepracy simply because your depth doesnt flow. it looks stuck on his face with glue. you can fix it by not using such strong colours that clash.

well i see you werent exactly going for the blended rendering ...were you using a tablet? or mouse...i think you get colors pretty well...try and expand further than ghandi's face now_________________www.andresguzman.com
---Would you believe me if i told you i was a liar?...

While it's nice as a party trick sort of thing to paint with a mouse - especially if it's done in MS Paint and uploaded to YouTube for everyone to have a chuckle, there is no point using it while you hone your skills in painting. Get yourself a pencil and some paper and practise using the real tools of the trade. You will see much quicker progress that way. Or if you must use Photoshop - get a tablet._________________My blog